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import { UUID } from "./uuid.ts";import { BSONError } from "./error.ts";import { b64 } from "../deps.ts";
export const enum BinarySizes {  BUFFER_SIZE = 256,  SUBTYPE_DEFAULT = 0,  SUBTYPE_FUNCTION = 1,  SUBTYPE_BYTE_ARRAY = 2,  SUBTYPE_UUID = 4,  SUBTYPE_MD5 = 5,  SUBTYPE_ENCRYPTED = 6,  SUBTYPE_COLUMN = 7,  SUBTYPE_USER_DEFINE = 128,  BSON_BINARY_SUBTYPE_DEFAULT = 0,}
const textDecoder = new TextDecoder();
export class Binary {  buffer!: Uint8Array;  subType!: number;
  constructor(    buffer: Uint8Array,    subType: number = BinarySizes.BSON_BINARY_SUBTYPE_DEFAULT,  ) {    this.buffer = buffer;    this.subType = subType;  }
  length(): number {    return this.buffer.length;  }
  toJSON(): string {    return b64.encode(this.buffer);  }
  toString(): string {    return textDecoder.decode(this.buffer);  }
  toUUID(): UUID {    if (this.subType === BinarySizes.SUBTYPE_UUID) {      return new UUID(this.buffer);    }
    throw new BSONError(      `Binary sub_type "${this.subType}" is not supported for converting to UUID. Only "${BinarySizes.SUBTYPE_UUID}" is currently supported.`,    );  }
  [Symbol.for("Deno.customInspect")](): string {    if (this.subType === BinarySizes.SUBTYPE_DEFAULT) {      return `new Binary(${Deno.inspect(this.buffer)})`;    }
    return `new Binary(${Deno.inspect(this.buffer)}, ${this.subType})`;  }}